Defeating Queen Calypso

Besides Queen Calypso and I both being Death, I can't beat her. I have death prisms with me, a fire mastery amulet, and treasure cards if needed. I pack fire and storm traps and some fire and storm spells. I still don't understand what I'm doing wrong. The closest I've ever gotten was her being at 900 health and defeating her minion. Can anyone help?

Besides Queen Calypso and I both being Death, I can't beat her. I have death prisms with me, a fire mastery amulet, and treasure cards if needed. I pack fire and storm traps and some fire and storm spells. I still don't understand what I'm doing wrong. The closest I've ever gotten was her being at 900 health and defeating her minion. Can anyone help?

I can help you later in that dungeon if you can wait. And I live in central time zone.